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Magnusson TF

Microorganisms and Food

QuestionAnswer
What is meant by food spoilage? Food spoilage is when microorganisms grow on food
How does food spoilage happen? Microorganisms take nutrients by releasing enzymes onto food and then absorbing the digested food, causing the food to 'go off'.
Describe how the process of heating help to preserve food. Heating food can kill microbes that are already on the food. If it is heated to kill microbes, then packaged to prevent further contamination.
Describe how the process of cooling help to preserve food. Cooling food helps slow down the rate of reproduction of the microorganisms. It also slows down metabolic processes and rate of enzyme action.
How does cooking prevent food spoilage? The heat denatures enzymes and other proteins and kills the microorganisms.
How does pickling prevent food spoilage? This uses an acid PH to kill microorganisms by denaturing their enzymes and other proteins.
Created by: Tasha F
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